Adjustable Guide Device for Strip Material Centering
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Solution Overview
Problem
Existing adjustable guide devices for strip-shaped materials of different widths often fail to maintain the center of the material's longitudinal direction relative to the guide device housing when width adjustments are made, leading to instability and susceptibility to disturbances.
Innovation Solution
A guide device with two lateral guide elements, where one element can be adjusted towards or away from the other, featuring angled guide grooves and a single guide pin that passes through both grooves, ensuring stepless width adjustment and maintaining the centering of the material, while being wear-resistant and allowing for reverse installation and horizontal displacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional adjustable guide device is used, then width adjustment is possible, but the center position of the material changes relative to the housing
Solution Approach 1:
The guide grooves are arranged asymmetrically at specific angles (e.g., 45 degrees) relative to the housing, with the first guide groove extending in a first direction and the second guide groove extending in a second direction. This asymmetric angular arrangement ensures that when the guide pin moves along the grooves to adjust width, the guide elements move symmetrically away from or toward the center line, maintaining constant center position while achieving width adjustment.
2Adaptability or versatility
If guide elements are adjusted laterally, then width adaptation is achieved, but the device becomes susceptible to disturbances and less stable
Solution Approach 1:
The guide grooves have different local orientations: the first guide groove is oriented at a first angle to the center line while the second guide groove is oriented at a second angle to the center line. These different local groove directions create asymmetric guidance paths that generate stabilizing forces, causing the guide elements to move uniformly away from or toward the center line in a controlled manner rather than allowing uncontrolled lateral displacement, thus maintaining stability during width adjustment.
3Manufacturing precision
If multiple guide pins are used, then positioning accuracy improves, but device complexity and susceptibility to disturbances increases
Solution Approach 1:
The single guide pin serves multiple functions simultaneously: it engages with both the first guide groove and the second guide groove, connects both guide elements, enables width adjustment through its movement along the angled grooves, and maintains centering through the geometric relationship between the grooves. This single component performs what would traditionally require multiple separate positioning mechanisms, reducing complexity while maintaining precision.
Data Source
Figure 1~2
Figure 3A~3E
AI summary
The invention relates to an adjustable guide device (3) for strip-shaped material of different widths with two lateral guide elements (4, 5), a first (4) of which is adjustable towards or away from the second (5), wherein the first guide element (4) and the second guide element (5) have a first guide groove (6) and a second guide groove (7) respectively, which are arranged at least partially at an angle to each other, wherein a single guide pin (9) extends through both the first guide groove (6) and the second guide groove (7), wherein the guide pin (9) additionally extends through a third guide groove (8) formed in a carrier (10), wherein the carrier (10) is attached to a housing (11) and the longitudinal direction of the third guide groove (8) does not change with respect to the direction of movement of the strip-shaped material, and the first (6) and the second guide groove (7) are arranged at an angle to the third guide groove (8).